RS904 Jeju CityCJU · 11:55 SeoulGMP · 13:10
RS904 by Air Seoul flies from Jeju City (CJU) to Seoul (GMP) for the Fri, Oct 16 departure.
arrived at GMP · 11 min late
⚖ RS904 typically leaves +29 and lands +2. The air wins minutes back.Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival +2 min · 0 cancelled · 15 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Jeju City to Seoul flights today
same route · Air SeoulIf RS904 is cancelled, these are the other Air Seoul nonstop flights from Jeju City to Seoul on the same day, with scheduled departure times in CJU local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How RS904 actually runs
Pro Flight Search has tracked every published board update for RS904 across the CJU and GMP boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 14 confirmed landings · 12/14 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how RS904 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as CJU and GMP published them.
Planning around RS904? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — RS904 Jeju City to Seoul on-time performance, measured from the CJU and GMP airport boards.
https://proflightsearch.com/flight/RS904
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